Properties

Label 1520.2.bd
Level $1520$
Weight $2$
Character orbit 1520.bd
Rep. character $\chi_{1520}(113,\cdot)$
Character field $\Q(\zeta_{4})$
Dimension $116$
Sturm bound $480$

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Defining parameters

Level: \( N \) \(=\) \( 1520 = 2^{4} \cdot 5 \cdot 19 \)
Weight: \( k \) \(=\) \( 2 \)
Character orbit: \([\chi]\) \(=\) 1520.bd (of order \(4\) and degree \(2\))
Character conductor: \(\operatorname{cond}(\chi)\) \(=\) \( 95 \)
Character field: \(\Q(i)\)
Sturm bound: \(480\)

Dimensions

The following table gives the dimensions of various subspaces of \(M_{2}(1520, [\chi])\).

Total New Old
Modular forms 504 124 380
Cusp forms 456 116 340
Eisenstein series 48 8 40

Trace form

\( 116 q - 4 q^{5} + 4 q^{7} + 8 q^{11} - 4 q^{17} + 16 q^{23} - 4 q^{25} + 28 q^{35} + 4 q^{43} + 16 q^{45} - 20 q^{47} + 72 q^{55} + 8 q^{57} - 40 q^{61} + 36 q^{63} - 4 q^{73} - 32 q^{77} - 92 q^{81} + 32 q^{83}+ \cdots + 28 q^{95}+O(q^{100}) \) Copy content Toggle raw display

Decomposition of \(S_{2}^{\mathrm{new}}(1520, [\chi])\) into newform subspaces

The newforms in this space have not yet been added to the LMFDB.

Decomposition of \(S_{2}^{\mathrm{old}}(1520, [\chi])\) into lower level spaces

\( S_{2}^{\mathrm{old}}(1520, [\chi]) \simeq \) \(S_{2}^{\mathrm{new}}(95, [\chi])\)\(^{\oplus 5}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(190, [\chi])\)\(^{\oplus 4}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(380, [\chi])\)\(^{\oplus 3}\)\(\oplus\)\(S_{2}^{\mathrm{new}}(760, [\chi])\)\(^{\oplus 2}\)